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Sun-Thickened Linseed Oil 8 fl oz

SKU: NAP-510-40OST08
Sun-Thickened Linseed Oil 8 fl oz
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 1   US$ 44.03 
 2   US$ 43.77 
 3   US$ 43.61 
 4-5   US$ 43.50 
 6-7   US$ 43.35 
 8-11   US$ 43.24 
 12+   US$ 43.08 
Price: US$ 44.03
US$ 44.03

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Product description


Rublev Colours Sun-Thickened Linseed Oil is made by exposing raw, cold-pressed linseed oil to sunlight in shallow tanks covered with clear glass and exposed to the atmosphere for a period of one month. Exposure to sunlight lightens the oil considerably but only slightly thickens it.

To give the oil more body (higher viscosity), we place lead sheets in the tank and blow air through the oil for at least three more months. Trace amounts of lead may dissolve into the oil and may be present in the finished oil.

This linseed oil is slightly more yellow than sun-thickened walnut oil, so it can be used with pale colors and white. This oil can be used as a medium or added to homemade mediums.

Use turpentine, spike oil or mineral spirits as a solvent or diluent for oil painting mediums made with linseed oil. Linseed oil is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae).

Natural Source: Linseed
Linum usitatissimum
Acid Value (mg KOH/g), max: 1
Color (Gardner 1953), max.: 3
Iodine Value: 145–160
Viscosity (Stokes @ 25° C): 0.65
Viscosity (Gardner-Holdt @ 25° C): B
Saponification Value: 162–172
Appearance (@ 25° C): Clear/Transparent
Specific gravity (@ 25° C): 0.960
Weight Per Gallon: 7.81 lbs.
Health and Safety

Warning: Rags or paper towels contaminated with vegetable drying oils, particularly those containing iron oxide pigments are susceptible to spontaneous combustion. To prevent unexpected fires, used rags or paper towels contaminated with oil-based materials should be collected in a closable, air-tight container. Store water-dampened rags or paper towels in a metal container with an air-tight top. Alternately, washing contaminated rags will remove contaminating materials and eliminate risk.

WARNING! CONTAINS LEAD. HARMFUL IF SWALLOWED. Avoid ingestion and skin contact. Wear protective clothing and gloves to prevent contact with skin. Never use near children or pets. Conforms to ASTM D 4236.

Must be used exclusively as material for the purposes of arts, crafts or hobbies, not for use by children. Utiliser uniquement aux fins suivantes comme matériaux pour les besoins d'art, d'artisanat ou passe-temps, pas pour une utilisation par les enfants.


Natural Source: Linseed, Linum usitatissimum
Acid Value: 1
Color (Gardner): 3
Iodine Value: 145–160
Viscosity: 0.65, B
Saponification Value: 162–172
Appearance: Clear/Transparent
Weight Per Gallon: 7.81 lbs.

Natural Pigments

Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.

We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.

Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
All Natural Pigments products

Product weight: 0.50 lbs

This product is shipped from our warehouse in Gretna, NE, USA.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
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Sun-Thickened Linseed Oil 8 fl oz

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